--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/github.com/spf13/afero/iofs.go Sun Jul 11 10:35:56 2021 +0200
@@ -0,0 +1,288 @@
+// +build go1.16
+
+package afero
+
+import (
+ "io"
+ "io/fs"
+ "os"
+ "path"
+ "time"
+)
+
+// IOFS adopts afero.Fs to stdlib io/fs.FS
+type IOFS struct {
+ Fs
+}
+
+func NewIOFS(fs Fs) IOFS {
+ return IOFS{Fs: fs}
+}
+
+var (
+ _ fs.FS = IOFS{}
+ _ fs.GlobFS = IOFS{}
+ _ fs.ReadDirFS = IOFS{}
+ _ fs.ReadFileFS = IOFS{}
+ _ fs.StatFS = IOFS{}
+ _ fs.SubFS = IOFS{}
+)
+
+func (iofs IOFS) Open(name string) (fs.File, error) {
+ const op = "open"
+
+ // by convention for fs.FS implementations we should perform this check
+ if !fs.ValidPath(name) {
+ return nil, iofs.wrapError(op, name, fs.ErrInvalid)
+ }
+
+ file, err := iofs.Fs.Open(name)
+ if err != nil {
+ return nil, iofs.wrapError(op, name, err)
+ }
+
+ // file should implement fs.ReadDirFile
+ if _, ok := file.(fs.ReadDirFile); !ok {
+ file = readDirFile{file}
+ }
+
+ return file, nil
+}
+
+func (iofs IOFS) Glob(pattern string) ([]string, error) {
+ const op = "glob"
+
+ // afero.Glob does not perform this check but it's required for implementations
+ if _, err := path.Match(pattern, ""); err != nil {
+ return nil, iofs.wrapError(op, pattern, err)
+ }
+
+ items, err := Glob(iofs.Fs, pattern)
+ if err != nil {
+ return nil, iofs.wrapError(op, pattern, err)
+ }
+
+ return items, nil
+}
+
+func (iofs IOFS) ReadDir(name string) ([]fs.DirEntry, error) {
+ items, err := ReadDir(iofs.Fs, name)
+ if err != nil {
+ return nil, iofs.wrapError("readdir", name, err)
+ }
+
+ ret := make([]fs.DirEntry, len(items))
+ for i := range items {
+ ret[i] = dirEntry{items[i]}
+ }
+
+ return ret, nil
+}
+
+func (iofs IOFS) ReadFile(name string) ([]byte, error) {
+ const op = "readfile"
+
+ if !fs.ValidPath(name) {
+ return nil, iofs.wrapError(op, name, fs.ErrInvalid)
+ }
+
+ bytes, err := ReadFile(iofs.Fs, name)
+ if err != nil {
+ return nil, iofs.wrapError(op, name, err)
+ }
+
+ return bytes, nil
+}
+
+func (iofs IOFS) Sub(dir string) (fs.FS, error) { return IOFS{NewBasePathFs(iofs.Fs, dir)}, nil }
+
+func (IOFS) wrapError(op, path string, err error) error {
+ if _, ok := err.(*fs.PathError); ok {
+ return err // don't need to wrap again
+ }
+
+ return &fs.PathError{
+ Op: op,
+ Path: path,
+ Err: err,
+ }
+}
+
+// dirEntry provides adapter from os.FileInfo to fs.DirEntry
+type dirEntry struct {
+ fs.FileInfo
+}
+
+var _ fs.DirEntry = dirEntry{}
+
+func (d dirEntry) Type() fs.FileMode { return d.FileInfo.Mode().Type() }
+
+func (d dirEntry) Info() (fs.FileInfo, error) { return d.FileInfo, nil }
+
+// readDirFile provides adapter from afero.File to fs.ReadDirFile needed for correct Open
+type readDirFile struct {
+ File
+}
+
+var _ fs.ReadDirFile = readDirFile{}
+
+func (r readDirFile) ReadDir(n int) ([]fs.DirEntry, error) {
+ items, err := r.File.Readdir(n)
+ if err != nil {
+ return nil, err
+ }
+
+ ret := make([]fs.DirEntry, len(items))
+ for i := range items {
+ ret[i] = dirEntry{items[i]}
+ }
+
+ return ret, nil
+}
+
+// FromIOFS adopts io/fs.FS to use it as afero.Fs
+// Note that io/fs.FS is read-only so all mutating methods will return fs.PathError with fs.ErrPermission
+// To store modifications you may use afero.CopyOnWriteFs
+type FromIOFS struct {
+ fs.FS
+}
+
+var _ Fs = FromIOFS{}
+
+func (f FromIOFS) Create(name string) (File, error) { return nil, notImplemented("create", name) }
+
+func (f FromIOFS) Mkdir(name string, perm os.FileMode) error { return notImplemented("mkdir", name) }
+
+func (f FromIOFS) MkdirAll(path string, perm os.FileMode) error {
+ return notImplemented("mkdirall", path)
+}
+
+func (f FromIOFS) Open(name string) (File, error) {
+ file, err := f.FS.Open(name)
+ if err != nil {
+ return nil, err
+ }
+
+ return fromIOFSFile{File: file, name: name}, nil
+}
+
+func (f FromIOFS) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
+ return f.Open(name)
+}
+
+func (f FromIOFS) Remove(name string) error {
+ return notImplemented("remove", name)
+}
+
+func (f FromIOFS) RemoveAll(path string) error {
+ return notImplemented("removeall", path)
+}
+
+func (f FromIOFS) Rename(oldname, newname string) error {
+ return notImplemented("rename", oldname)
+}
+
+func (f FromIOFS) Stat(name string) (os.FileInfo, error) { return fs.Stat(f.FS, name) }
+
+func (f FromIOFS) Name() string { return "fromiofs" }
+
+func (f FromIOFS) Chmod(name string, mode os.FileMode) error {
+ return notImplemented("chmod", name)
+}
+
+func (f FromIOFS) Chown(name string, uid, gid int) error {
+ return notImplemented("chown", name)
+}
+
+func (f FromIOFS) Chtimes(name string, atime time.Time, mtime time.Time) error {
+ return notImplemented("chtimes", name)
+}
+
+type fromIOFSFile struct {
+ fs.File
+ name string
+}
+
+func (f fromIOFSFile) ReadAt(p []byte, off int64) (n int, err error) {
+ readerAt, ok := f.File.(io.ReaderAt)
+ if !ok {
+ return -1, notImplemented("readat", f.name)
+ }
+
+ return readerAt.ReadAt(p, off)
+}
+
+func (f fromIOFSFile) Seek(offset int64, whence int) (int64, error) {
+ seeker, ok := f.File.(io.Seeker)
+ if !ok {
+ return -1, notImplemented("seek", f.name)
+ }
+
+ return seeker.Seek(offset, whence)
+}
+
+func (f fromIOFSFile) Write(p []byte) (n int, err error) {
+ return -1, notImplemented("write", f.name)
+}
+
+func (f fromIOFSFile) WriteAt(p []byte, off int64) (n int, err error) {
+ return -1, notImplemented("writeat", f.name)
+}
+
+func (f fromIOFSFile) Name() string { return f.name }
+
+func (f fromIOFSFile) Readdir(count int) ([]os.FileInfo, error) {
+ rdfile, ok := f.File.(fs.ReadDirFile)
+ if !ok {
+ return nil, notImplemented("readdir", f.name)
+ }
+
+ entries, err := rdfile.ReadDir(count)
+ if err != nil {
+ return nil, err
+ }
+
+ ret := make([]os.FileInfo, len(entries))
+ for i := range entries {
+ ret[i], err = entries[i].Info()
+
+ if err != nil {
+ return nil, err
+ }
+ }
+
+ return ret, nil
+}
+
+func (f fromIOFSFile) Readdirnames(n int) ([]string, error) {
+ rdfile, ok := f.File.(fs.ReadDirFile)
+ if !ok {
+ return nil, notImplemented("readdir", f.name)
+ }
+
+ entries, err := rdfile.ReadDir(n)
+ if err != nil {
+ return nil, err
+ }
+
+ ret := make([]string, len(entries))
+ for i := range entries {
+ ret[i] = entries[i].Name()
+ }
+
+ return ret, nil
+}
+
+func (f fromIOFSFile) Sync() error { return nil }
+
+func (f fromIOFSFile) Truncate(size int64) error {
+ return notImplemented("truncate", f.name)
+}
+
+func (f fromIOFSFile) WriteString(s string) (ret int, err error) {
+ return -1, notImplemented("writestring", f.name)
+}
+
+func notImplemented(op, path string) error {
+ return &fs.PathError{Op: op, Path: path, Err: fs.ErrPermission}
+}